Adele's chart-topping release 21 has overtaken Pink Floyd's landmark 1973 release, The Dark Side Of The Moon, making it the seventh biggest-selling album of all-time.

The album, including hits Rolling In The Deep and Someone Like You, has now sold more than 4,142,000 copies.

Sales figures from the Official Charts Company show it is also just 12,000 copies away from the sixth best-selling album, Dire Straits' long player Brothers In Arms, and is likely to move further up the chart soon.